Merge pull request #8824 from basilfx/feature/efm32_slwstk6200b

boards/slwstk6000b/Makefile

boards/slwstk6000b/Makefile.dep

boards/slwstk6000b/Makefile.features

boards/slwstk6000b/Makefile.include

boards/slwstk6000b/board.c

boards/slwstk6000b/include/board.h

boards/slwstk6000b/include/gpio_params.h

boards/slwstk6000b/include/periph_conf.h

boards/slwstk6000b/module-info.mk

boards/slwstk6000b/modules.txt

boards/slwstk6000b/modules/slwrb4150a/include/board_module.h

boards/slwstk6000b/modules/slwrb4162a/include/board_module.h

cpu/efm32/families/efr32mg12p/Makefile

cpu/efm32/families/efr32mg12p/cpus.txt

...ilies/efr32mg12p/include/vendor/efr32mg12p332f1024gl125.h

...fm32/families/efr32mg12p/include/vendor/efr32mg12p_acmp.h

...efm32/families/efr32mg12p/include/vendor/efr32mg12p_adc.h

...2/families/efr32mg12p/include/vendor/efr32mg12p_af_pins.h

.../families/efr32mg12p/include/vendor/efr32mg12p_af_ports.h

...efm32/families/efr32mg12p/include/vendor/efr32mg12p_cmu.h